OK, cotton bacon is fine. Some folks swear by it, I never thought it was worth the premium in price, but is certainly works. There are two schools of thought on placing the wick. One is all the way through to the bottom. The other is to just lay the tail of the wick over the holes. I go in between with the end of the wick held in place by the hole, but not running all the way to the bottom.
Those EUC coils happen to be really good, so if the flavor is beating that, you're doing fine for a first build with this tank. The 22 mm Engine mini is a little different as it does have a smaller chamber and hat will help concentrate the flavor a bit more.
I like the Claptons as the extra metal mass will evaporate more juice giving you more flavor. It seems to offer better performance for my taste, at least in a larger chamber tank. I also use SS Claptons and run in temp control, so that's another factor to allow for.
As for power, SE is a guide at best, not what you have to use. It's mostly helpful in figuring out the heat flux of your build which will give you an idea how much power you might be able to use. You can certainly crank the power down and see how it vapes. Dual Kanthal should heat up pretty fast, although you are using 24G and a 3 mm build, which offsets things a tiny bit, needing a touch more power than say a 28G build. Still, for my personal taste, I would probably be using a lower wattage and still get a nice warm vape. I could be happy at 40-45W with a build like that, or even lower.
Best approach is only change one variable at a time. First, play around with the power settings until you're satisfied you're at the best spot for your taste. Then you can try raising (or lowering) the coils a bit and see it it matters one way or another. When that's all sorted out, then other wires to make your coils from is another step if you want to. If you get this build dialed in with a good power level and the coils placed for best exposure to the airflow (kinda towards the top is my preference, but not too high as you don't want the coil to touch the chamber wall which will short it out), you can stop right there as you're set. For the moment just pretend I never mentioned Clapton coils. No need to dump more stuff in this early if you're still pretty new to building.